Directions: Identify the words that are being describe. Choose your answer from the 2. Located under the stage, controls the amount of light allowed to pass through the What Am I? box below. Write your answer on a separate sheet of paper BASE REVOLVING NOSE PIECE STAGE ARM DIAPHRAGM 1. Supports the upper part of the microscope. object. 3. Small platform where the specimen is placed for evaluation 4. Holds objective lenses and can be rotated. 5. The bottom part of the microscope, supports the entire microscope.